203.48.0.0/14

AS1221  ·  Telstra Limited

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Summary

Country Australia
Domain telstra.net
ASN AS1221
Registry APNIC
ID TELSTRAINTERNET3-AU

WHOIS Details

inetnum:        203.48.0.0 - 203.51.255.255
netname:        TELSTRAINTERNET3-AU
descr:          Telstra Limited
country:        AU
org:            ORG-TC6-AP
admin-c:        TIAR-AP
tech-c:         TAN2-AP
abuse-c:        AT1005-AP
status:         ALLOCATED PORTABLE
remarks:        -----
remarks:        All reports regarding SPAM or security breaches
remarks:        should be addressed to [email protected]
remarks:        ------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-AU-TIAR-AP
mnt-routes:     MAINT-AU-TIAR-AP
mnt-irt:        IRT-TELSTRA-AU
last-modified:  2024-05-10T00:50:23Z
geofeed:        https://geofeed.tools.telstra.net/geofeed.csv
source:         APNIC

irt:            IRT-TELSTRA-AU
address:        Telstra Internet
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        TIAR-AP
tech-c:         TIAR-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2025-07-15
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2025-11-18T00:26:24Z
source:         APNIC

organisation:   ORG-TC6-AP
org-name:       Telstra Limited
org-type:       LIR
country:        AU
address:        242 Exhibition Street
e-mail:         [email protected]
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2024-12-06T08:30:50Z
source:         APNIC

role:           ABUSE TELSTRAAU
country:        ZZ
address:        Telstra Internet
phone:          +000000000
e-mail:         [email protected]
admin-c:        TIAR-AP
tech-c:         TIAR-AP
nic-hdl:        AT1005-AP
remarks:        Generated from irt object IRT-TELSTRA-AU
remarks:        [email protected] was validated on 2025-07-15
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-07-15T22:43:15Z
source:         APNIC

role:           Telstra AU NOC
address:        Telstra Internet
address:        242 Exhibition Street
address:        Melbourne
address:        VIC 3000
country:        AU
phone:          +61 3 8650 3305
e-mail:         [email protected]
admin-c:        TIAR-AP
tech-c:         TIAR-AP
nic-hdl:        TAN2-AP
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2025-11-26T05:11:17Z
source:         APNIC

person:         Telstra Internet Address Registry
address:        Telstra Internet
address:        242 Exhibition St
address:        Melbourne
address:        VIC 3000
country:        AU
phone:          +61 000000000
e-mail:         [email protected]
nic-hdl:        TIAR-AP
remarks:        Telstra Internet Address Registry Role Object
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2021-12-09T22:28:56Z
source:         APNIC

route:          203.48.0.0/14
origin:         AS1221
descr:          Telstra Corporation 242 Exhibition Street
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2019-12-11T21:09:29Z
source:         APNIC

route:          203.48.0.0/14
origin:         AS19905
descr:          Telstra Corporation Limited 242 Exhibition Street
mnt-by:         MAINT-AU-TIAR-AP
last-modified:  2022-09-12T02:34:11Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.0.0.0/8

Range ASN Company Num of IPs
203.40.0.0/13 AS1221 Telstra Limited 524,288
203.36.0.0/14 AS1221 Telstra Limited 262,144
203.102.0.0/15 AS703 Verizon Australia PTY Limited 131,072
203.52.0.0/15 AS1221 Telstra Limited 131,072
203.155.0.0/16 AS17478 KSC Commercial Internet Co. Ltd. 65,536
203.224.0.0/16 AS9273 ITCENENTEC CO.,LTD. 65,536
203.108.0.0/16 AS12234 OzEmail Pty Ltd 65,536
203.151.0.0/16 AS4618 Internet Thailand Company Limited 65,536
203.231.0.0/16 AS9973 SEJONG NETWORKS 65,536
203.154.0.0/16 AS4618 Internet Thailand Company Limited 65,536
203.219.0.0/16 AS7545 TPG Internet Pty Ltd. 65,536
203.125.0.0/16 AS3758 SingNet Pte Ltd 65,536
203.231.0.0/16 AS3608 SEJONG NETWORKS 65,536
203.74.0.0/16 AS131660 Data Communication Business Group, 65,536
203.108.0.0/16 AS703 OzEmail Pty Ltd 65,536
203.54.0.0/16 AS1221 Telstra Limited 65,536
203.61.0.0/16 AS703 Verizon Australia PTY Limited 65,536
203.59.0.0/16 AS7545 iiNet Limited 65,536
203.227.0.0/16 AS9973 SEJONG NETWORKS 65,536
203.200.0.0/16 AS4755 Internet Service Provider 65,536
203.177.0.0/16 AS132595 Globe Telecom 65,536
203.106.0.0/16 AS4788 TM TECHNOLOGY SERVICES SDN. BHD. 65,536
203.180.0.0/16 AS2497 Internet Initiative Japan Inc. 65,536
203.197.0.0/16 AS4755 Internet Service Provider 65,536
203.155.0.0/16 AS45197 KSC Commercial Internet Co. Ltd. 65,536
203.177.0.0/16 AS4775 Globe Telecom 65,536
203.177.0.0/16 AS24451 Globe Telecom 65,536
203.59.0.0/16 AS4802 iiNet Limited 65,536
203.225.0.0/16 AS4766 KOLON BENIT 65,536
203.206.0.0/16 AS7545 iiNet Limited 65,536
203.35.0.0/16 AS1221 Telstra Limited 65,536
203.227.0.0/16 AS23584 SEJONG NETWORKS 65,536
203.231.0.0/16 AS131866 SEJONG NETWORKS 65,536
203.85.0.0/16 AS4058 CITIC Telecom International CPC Limited 65,536
203.68.0.0/16 AS1659 Taiwan Academic Network 65,536
203.155.0.0/16 AS7693 KSC Commercial Internet Co. Ltd. 65,536
203.182.0.0/16 AS4673 NTT DATA CORPORATION 65,536
203.75.0.0/16 AS3462 Data Communication Business Group, 65,536
203.155.0.0/16 AS23644 KSC Commercial Internet Co. Ltd. 65,536
203.151.0.0/16 AS56223 Internet Thailand Company Limited 65,536
203.162.0.0/16 AS7643 Vietnam Posts and Telecommunications Group 65,536
203.227.0.0/16 AS9848 SEJONG NETWORKS 65,536
203.67.0.0/16 AS4780 Digital United Inc. 65,536
203.69.0.0/16 AS3462 Data Communication Business Group, 65,536
203.66.0.0/16 AS3462 Data Communication Business Group, 65,536
203.63.0.0/16 AS2764 AAPT Limited 65,536
203.231.0.0/16 AS17881 SEJONG NETWORKS 65,536
203.70.0.0/16 AS4780 Digital United Inc. 65,536
203.155.0.0/16 AS55844 KSC Commercial Internet Co. Ltd. 65,536

Hosted domains

There are 388 domain names hosted across 189 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
203.49.29.70 kelcar.com.au 44
203.51.37.128 beekeepersignature.vn 14
203.48.112.143 pcs.nt.edu.au 13
203.49.88.145 bardic.com.au 13
203.51.37.176 beagoodhuman.charity 13
203.48.29.225 vipascend.com.au 10
203.51.4.15 andyleighton.com 7
203.51.51.192 apisaus.com 7
203.51.52.2 adapt-ed.net 6
203.49.158.10 kristian-rose.com 6
203.51.31.185 isitfuf.info 5
203.48.111.114 mookster.com.au 5
203.51.38.58 apdhost.com 5
203.49.43.90 camelotcourt.com.au 4
203.51.38.33 aljesal.com.au 4
203.48.111.50 transportdelight.com.au 4
203.49.148.202 visyboard.com 4
203.51.32.189 msar.com.au 4
203.51.40.231 taremovals.com.au 3
203.48.253.141 cqdoc.com 3

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.
Useful for Cybersecurity

Pingable IPs

3,962 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
203.48.124.2 AS1221 Telstra Limited 2.87ms from Brisbane, AU
203.48.64.68 AS1221 Telstra Limited 1.72ms from Brisbane, AU
203.48.105.2 AS1221 Telstra Limited 0.82ms from Melbourne, AU
203.48.245.132 AS1221 Telstra Limited 1.25ms from Melbourne, AU
203.48.243.225 AS1221 Telstra Limited 1.12ms from Sydney, AU
203.48.154.186 AS1221 Telstra Limited 1.23ms from Sydney, AU
203.48.146.172 AS1221 Telstra Limited 8.98ms from Adelaide, AU
203.48.53.22 AS1221 Telstra Limited 0.88ms from Melbourne, AU
203.48.199.1 AS1221 Telstra Limited 1.06ms from Sydney, AU
203.48.253.241 AS1221 Telstra Limited 1.16ms from Adelaide, AU
203.48.82.84 AS1221 Telstra Limited 1.20ms from Adelaide, AU
203.49.47.153 AS1221 Telstra Limited 1.04ms from Brisbane, AU
203.49.6.206 AS1221 Telstra Limited 1.64ms from Brisbane, AU
203.48.28.126 AS1221 Telstra Limited 1.23ms from Brisbane, AU
203.48.101.76 AS1221 Telstra Limited 3.77ms from Melbourne, AU
203.48.4.45 AS1221 Telstra Limited 1.04ms from Melbourne, AU
203.48.125.177 AS1221 Telstra Limited 1.37ms from Sydney, AU
203.48.36.177 AS1221 Telstra Limited 1.22ms from Sydney, AU
203.48.112.39 AS1221 Telstra Limited 32.13ms from Adelaide, AU
203.48.152.145 AS1221 Telstra Limited 1.19ms from Melbourne, AU
203.49.31.97 AS1221 Telstra Limited 0.88ms from Melbourne, AU
203.49.57.67 AS1221 Telstra Limited 1.53ms from Melbourne, AU
203.49.111.58 AS1221 Telstra Limited 1.28ms from Perth, AU
203.48.35.49 AS1221 Telstra Limited 0.84ms from Perth, AU
203.48.65.22 AS1221 Telstra Limited 1.24ms from Brisbane, AU

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
218.69.255.238 AS4837 CHINA UNICOM China169 Backbone 5.78ms from Beijing, CN
91.120.37.142 AS5588 T-Mobile Czech Republic a.s. 0.11ms from Budapest, HU
34.253.57.46 AS16509 Amazon.com, Inc. 0.16ms from Dublin, IE
212.99.205.254 AS21413 Envia Tel GmbH 4.60ms from Falkenstein, DE
218.250.208.254 AS4760 HKT Limited 0.73ms from Hong Kong, HK
58.153.175.254 AS4760 HKT Limited 0.84ms from Hong Kong, HK
128.49.139.94 AS22 Navy Network Information Center (NNIC) 1.78ms from Los Angeles, US
91.39.187.158 AS3320 Deutsche Telekom AG 6.56ms from Nuernberg, DE
112.231.53.14 AS4837 CHINA UNICOM China169 Backbone 6.75ms from Qingdao, CN
189.83.184.174 AS7738 V tal 2.98ms from Rio de Janeiro, BR
14.52.240.254 AS4766 Korea Telecom 1.57ms from Seoul, KR
220.86.66.78 AS4766 Korea Telecom 1.07ms from Seoul, KR
115.20.0.30 AS4766 Korea Telecom 1.79ms from Seoul, KR
163.19.74.254 AS1659 Taiwan Academic Network (TANet) Information Center 2.73ms from Taipei, TW
211.75.10.254 AS3462 Data Communication Business Group 1.32ms from Taipei, TW
62.47.167.254 AS8447 A1 Telekom Austria AG 0.54ms from Vienna, AT
78.62.251.254 AS8764 Telia Lietuva, AB 0.83ms from Vilnius, LT
150.195.111.254 AS30036 Mediacom Communications Corp 13.91ms from Atlanta, US
221.179.214.126 AS9808 China Mobile Communications Group Co., Ltd. 0.74ms from Beijing, CN
45.18.180.142 AS7018 AT&T Enterprises, LLC 19.08ms from Chicago, US
50.77.130.238 AS7922 Comcast Cable Communications, LLC 5.50ms from Chicago, US
209.190.119.142 AS10297 eNET Inc. 3.62ms from Cincinnati, US
16.58.54.222 AS16509 Amazon.com, Inc. 0.70ms from Columbus, US
5.230.4.206 AS12586 GHOSTnet GmbH 0.26ms from Frankfurt am Main, DE
112.48.182.78 AS9808 China Mobile Communications Group Co., Ltd. 6.12ms from Fuzhou, CN

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

$
traceroute -a -n -q1 -m8 203.48.24.182
traceroute to 203.48.24.182 (203.48.24.182): 8 hops max, 52 byte packets
2 *
3 [AS1221] 203.50.11.198 100.072 ms
4 [AS1221] 203.50.13.124 101.6 ms
5 [AS1221] 203.50.13.132 110.387 ms
6 *
7 *
8 *
Measurement taken from IPinfo ProbeNet in Jakarta, ID
On

What are IP address ranges?

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Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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